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Finding the Fourth Proportional to 301,278.44, 451,920.26 and 76,639.10

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Solution

The fourth proportional to 301,278.44, 451,920.26 and 76,639.10 is: 114,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,278.44 : 451,920.26 = 76,639.10 : x
  2. Step 2: Convert to fraction form
    301,278.44/451,920.26 = 76,639.10/x
  3. Step 3: Cross multiply
    301,278.44x = 451,920.26 × 76,639.10
  4. Step 4: Simplify right side
    301,278.44x = 34,634,759,355.37
  5. Step 5: Solve for x
    x = 34,634,759,355.37/301,278.44
  6. Step 6: Final answer
    x = 114,959.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.